title: Isolated congenital round window absence.
abstract: An adult with unilateral round window atresia is presented. With care, CT scanning may be used to demonstrate round window occlusion. Cochlear fenestration resulted in only a modest hearing improvement. Previously reported cases are reviewed.
authors.affiliation: Royal North Shore Hospital, Sydney, Australia.
authors.forename: A R
authors.initials: AR
authors.lastname: Clifford
authors.forename: P A
authors.initials: PA
authors.lastname: Fagan
authors.forename: B D
authors.initials: BD
authors.lastname: Doust
mesh_terms: D000328:Adult; D001299:Audiometry; D005260:Female; D006314:Hearing Loss, Conductive / Q000209:etiology; D006801:Humans; D019736:Prostheses and Implants; D012405:Round Window, Ear / Q000002:abnormalities* / Q000000981:diagnostic imaging; D013201:Stapes Surgery; D014057:Tomography, X-Ray Computed